Wiseco K0170X6 Ford 302/351 Windsor Flat Top Forged Piston Kit -9cc Inline Valve

The Wiseco K0170X6 is a professional-series forged piston kit designed for Ford 302 and 351 Windsor small-block engines equipped with inline valve cylinder heads. This kit is purpose-built for high-performance builds using heads such as the TFS High Port, AFR, DART, Brodix Track 1, Canfield, Ford Racing Z304, Edelbrock Performer, Victor Jr, Profiler, GT40, and GT40X.

Each piston features a flat top crown with -9cc valve pockets (.350"/.250") to provide the precise compression ratio and valve clearance needed for inline valve head configurations. The pistons are forged from 2618 high-strength aluminum alloy and treated with Wiseco's proprietary ArmorGlide skirt coating for reduced friction, seizure resistance, and quieter operation.

Key Specifications:

• Crown: -9cc Flat Top
• Valve Pockets: .350" / .250"
• Top Land: .300" – .260"
• Compression Height: 1.090"
• Stroke: 3.400"
• Rod Length: 5.400"
• Deck Height: 8.200"
• Material: Forged 2618 High-Strength Aluminum Alloy
• Skirt Coating: ArmorGlide
• Ring Package: 1.2mm / 1.2mm / 3.0mm GFX rings included
• Wristpin: S424 included

Compatible Inline Valve Heads Include:

• TFS High Port
• AFR
• DART
• Brodix Track 1
• Canfield
• Ford Racing Z304
• Edelbrock Performer & Victor Jr
• Profiler
• Stock, GT40, GT40X

Each kit is engineered, forged, and precision CNC-machined in the USA at Wiseco's Mentor, Ohio facility. The complete kit includes pistons, GFX ring sets, wristpins, and circlips — everything needed for a full 8-cylinder rebuild.